Three U.S. senators are raising concerns about the Food and Drug Administration's approval of a powerful painkiller called Zohydro, which experts say could add to the national epidemic of prescription drug abuse.

Warren Buffett's company is considering trading its 1.7 million shares of Graham Holdings Co. for sole ownership of part of the company that was created when the Graham family sold the Washington Post.

Shares of Whole Foods Market Inc. dropped in after-hours trading Wednesday after the grocery chain reported that its fiscal first-quarter profit and revenue fell below analysts' forecasts. The Austin, Texas-based grocery chain, known for its organic and natural food offerings, also lowered its earnings projections for the year for the second time in months. It also pared down its full-year revenue guidance to the lower end of its expected range.

The air quality Tuesday was good, but Utahns across the Wasatch Front have experienced those murky skies in the last few weeks. The state's bad air is certainly top of mind right now, and some companies and city governments are making some changes.